Title: plugin with Theme makes Error
Last modified: December 30, 2019

---

# plugin with Theme makes Error

 *  Resolved [weltenraum](https://wordpress.org/support/users/weltenraum/)
 * (@weltenraum)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/plugin-with-theme-makes-error/)
 * Fatal error: Cannot declare class WPP_Query, because the name is already in use
   in /home/welteabr/www.weltenraum.at/wp-content/plugins/wordpress-popular-posts/
   src/WPP_Query.php on line 15
 * Theme WP Clear – Solostream
    -  This topic was modified 6 years, 5 months ago by [weltenraum](https://wordpress.org/support/users/weltenraum/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Hector Cabrera](https://wordpress.org/support/users/hcabrera/)
 * (@hcabrera)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/plugin-with-theme-makes-error/#post-12280236)
 * Hi [@weltenraum](https://wordpress.org/support/users/weltenraum/),
 * With so little info is difficult to say what’s going on. Try doing some basic
   debugging:
    - Does this issue happen with a different theme as well? (Eg. Twenty Twenty)
    - Does this issue still happen with all other plugins deactivated? (except for
      WPP of course.)
    - Which plugin version are you using over there?
 * Please start with that and come back once you’ve gathered some more information.
 * **Edit:** Please scratch all that. I’m guessing that by “theme” you mean the 
   Kappa theme. If so, please get in touch with its developer and ask them to look
   into it for you. They need to update their theme’s code.
    -  This reply was modified 6 years, 5 months ago by [Hector Cabrera](https://wordpress.org/support/users/hcabrera/).
 *  Thread Starter [weltenraum](https://wordpress.org/support/users/weltenraum/)
 * (@weltenraum)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/plugin-with-theme-makes-error/#post-12280277)
 * Yes, its the Theme but not Kappa, its WP Clear von Solostream, i have wrote the
   Crew from Solostream, thanks

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘plugin with Theme makes Error’ is closed to new replies.

 * ![](https://ps.w.org/wordpress-popular-posts/assets/icon-256x256.png?rev=1232659)
 * [WP Popular Posts](https://wordpress.org/plugins/wordpress-popular-posts/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-popular-posts/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-popular-posts/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-popular-posts/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-popular-posts/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-popular-posts/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [weltenraum](https://wordpress.org/support/users/weltenraum/)
 * Last activity: [6 years, 5 months ago](https://wordpress.org/support/topic/plugin-with-theme-makes-error/#post-12280277)
 * Status: resolved